P
US7956353B2ExpiredUtilityPatentIndex 96

Organic semiconductor element

Assignee: SEMICONDUCTOR ENERGY LABPriority: Dec 5, 2001Filed: Aug 21, 2008Granted: Jun 7, 2011
Est. expiryDec 5, 2021(expired)· nominal 20-yr term from priority
Inventors:TSUTSUI TETSUOYAMAZAKI HIROKOSEO SATOSHI
Y02E10/549B82Y 10/00Y02E10/50H10K 2101/10H10K 50/828H10K 59/32H10K 50/125H10K 50/19H10K 50/165H10K 85/30H10K 85/615H10K 85/6565H10K 50/11H10K 10/701H10K 85/631H10K 85/324H10K 85/611H10K 30/57H10K 50/155H10K 85/649H10K 85/311H10K 85/621H10K 50/13H10K 85/60H10K 30/20Y02P70/50H10K 39/00
96
PatentIndex Score
32
Cited by
233
References
29
Claims

Abstract

By introducing new concepts into a structure of a conventional organic semiconductor element and without using a conventional ultra thin film, an organic semiconductor element is provided which is more reliable and has higher yield. Further, efficiency is improved particularly in a photoelectronic device using an organic semiconductor. Between an anode and a cathode, there is provided an organic structure including alternately laminated organic thin film layer (functional organic thin film layer) realizing various functions by making an SCLC flow, and a conductive thin film layer (ohmic conductive thin film layer) imbued with a dark conductivity by doping it with an acceptor and a donor, or by the like method.

Claims

exact text as granted — not AI-modified
1. An electronic device comprising:
 a cathode; 
 an anode; 
 a first functional thin film layer comprising a first light emitting layer between the cathode and the anode; 
 a second functional thin film layer comprising a second light emitting layer between the cathode and the anode; and 
 a conductive thin film layer including an organic compound between the first functional thin film layer and the second functional thin film layer, 
 wherein the conductive thin film layer contacts with the first functional thin film layer and the second functional thin film layer, 
 wherein each of the first functional thin film layer and second functional thin film layers comprises a hole transporting layer and an electron transporting layer, 
 wherein the conductive thin film layer comprises an acceptor, and 
 wherein colors of light from the first light emitting layer and the second light emitting layer are different from each other. 
 
     
     
       2. An electronic device according to  claim 1 , wherein the acceptor is a material selected from the group consisting of AlCl 3 , AlBr 3 , AsF 6 , and halogen. 
     
     
       3. An electronic device according to  claim 1 ,
 wherein the color of light from the first light emitting layer is blue, and 
 wherein the color of light from the second light emitting layer is yellow. 
 
     
     
       4. An electronic device according to  claim 1 ,
 wherein mixed color of the colors of the light from the first light emitting layer and the light from the second light emitting layer is white. 
 
     
     
       5. An electronic device according to  claim 1 , wherein a conductivity of the conductive thin film layer is equal to or greater than 10 −10  S/m. 
     
     
       6. An electronic device according to  claim 1 , wherein the acceptor is a Lewis acid. 
     
     
       7. An electronic device comprising:
 a cathode; 
 an anode; 
 a first functional thin film layer comprising a first light emitting layer between the cathode and the anode; 
 a second functional thin film layer comprising a second light emitting layer between the cathode and the anode; and 
 a conductive thin film layer including an organic compound between the first functional thin film layer and the second functional thin film layer, 
 wherein each of the first functional thin film layer and second functional thin film layers comprises a hole transporting layer and an electron transporting layer, 
 wherein the conductive thin film layer contacts with the first functional thin film layer and the second functional thin film layer, 
 wherein the conductive thin film layer comprises an acceptor and a donor, and 
 wherein colors of light from the first light emitting layer and the second light emitting layer are different from each other. 
 
     
     
       8. An electronic device according to  claim 7 , wherein the donor is a material selected from the group consisting of an alkali metal and an alkali earth metal. 
     
     
       9. An electronic device according to  claim 7 , wherein the acceptor is a material selected from the group consisting of AlCl 3 , AlBr 3 , AsF 6 , and halogen. 
     
     
       10. An electronic device according to  claim 7 ,
 wherein the color of light from the first light emitting layer is blue, and 
 wherein the color of light from the second light emitting layer is yellow. 
 
     
     
       11. An electronic device according to  claim 7 ,
 wherein mixed color of the colors of the light from the first light emitting layer and the light from the second light emitting layer is white. 
 
     
     
       12. An electronic device according to  claim 7 , wherein a conductivity of the conductive thin film layer is equal to or greater than 10 −10  S/m. 
     
     
       13. An electronic device according to  claim 7 , wherein the acceptor is a Lewis acid. 
     
     
       14. An electronic device comprising:
 a cathode; 
 an anode; 
 a first functional thin film layer comprising a first light emitting layer between the cathode and the anode; 
 a second functional thin film layer comprising a second light emitting layer between the cathode and the anode; and 
 a conductive thin film layer between the first functional thin film layer and the second functional thin film layer, 
 wherein the conductive thin film layer comprising a first layer comprising an acceptor and a first organic compound and a second layer comprising a second organic compound, 
 wherein the first layer contacts with the first functional thin film layer and the second layer contacts with the second functional thin film layer, and 
 wherein colors of light from the first light emitting layer and the second light emitting layer are different from each other. 
 
     
     
       15. An electronic device according to  claim 14 ,
 wherein the first functional thin film layer comprises the first organic compound, and 
 wherein the second functional thin film layer comprises the second organic compound. 
 
     
     
       16. An electronic device according to  claim 14 , wherein the acceptor is a material selected from the group consisting of AlCl 3 , AlBr 3 , AsF 6 , and halogen. 
     
     
       17. An electronic device according to  claim 14 ,
 wherein the color of light from the first light emitting layer is blue, and 
 wherein the color of light from the second light emitting layer is yellow. 
 
     
     
       18. An electronic device according to  claim 14 ,
 wherein mixed color of the colors of the light from the first light emitting layer and the light from the second light emitting layer is white. 
 
     
     
       19. An electronic device according to  claim 14 , wherein a conductivity of the conductive thin film layer is equal to or greater than 10 −10  S/m. 
     
     
       20. An electronic device according to  claim 14 , wherein the acceptor is a Lewis acid. 
     
     
       21. An electronic device comprising:
 a cathode; 
 an anode; 
 a first functional thin film layer comprising a first light emitting layer between the cathode and the anode; 
 a second functional thin film layer comprising a second light emitting layer between the cathode and the anode; and 
 a conductive thin film layer between the first functional thin film layer and the second functional thin film layer, 
 wherein the conductive thin film layer comprising a first layer comprising an acceptor and a first organic compound and a second layer comprising a donor and a second organic compound, 
 wherein the first layer contacts with the first functional thin film layer and the second layer contacts with the second functional thin film layer, and 
 wherein colors of light from the first light emitting layer and the second light emitting layer are different from each other. 
 
     
     
       22. An electronic device according to  claim 21 ,
 wherein the first functional thin film layer comprises the first organic compound, and 
 wherein the second functional thin film layer comprises the second organic compound. 
 
     
     
       23. An electronic device according to  claim 21 , wherein the donor is a material selected from the group consisting of an alkali metal and an alkali earth metal. 
     
     
       24. An electronic device according to  claim 23 , wherein the acceptor is a Lewis acid. 
     
     
       25. An electronic device according to  claim 21 , wherein the acceptor is a material selected from the group consisting of AlCl 3 , AlBr 3 , AsF 6 , and halogen. 
     
     
       26. An electronic device according to  claim 21 ,
 wherein the color of light from the first light emitting layer is blue, and 
 wherein the color of light from the second light emitting layer is yellow. 
 
     
     
       27. An electronic device according to  claim 21 ,
 wherein mixed color of the colors of the light from the first light emitting layer and the light from the second light emitting layer is white. 
 
     
     
       28. An electronic device according to  claim 21 , wherein a conductivity of the conductive thin film layer is equal to or greater than 10 −10  S/m. 
     
     
       29. An electronic device according to  claim 21 , wherein the acceptor is a Lewis acid.

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